CVE-2025-68973

Published: Dec 28, 2025Modified: Jan 14, 2026

7.0

Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.0 / Impact: 5.9

Source: NVD

Description

In GnuPG before 2.4.9, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input. (For ExtendedLTS, 2.2.51 and later are fixed versions.)

Affected (1)

Products: Gnupg: Gnupg

Gnupg

1 product

Gnupg

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Gnupg Gnupg	Up to 2.4.8

Related CWEs

CWE-675

Multiple Operations on Resource in Single-Operation Context

The product performs the same operation on a resource two or more times, when the operation should only be applied once.

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (10)

https://github.com/gpg/gnupg/blob/ff30683418695f5d2cc9e6cf8c9418e09378ebe4/g10/armor.c#L1305-L1306

Source: cve@mitre.org

Product

https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9

Source: cve@mitre.org

Patch

https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51

Source: cve@mitre.org

Patch

https://gpg.fail/memcpy

Source: cve@mitre.org

Broken Link

https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i

Source: cve@mitre.org

Issue Tracking

https://news.ycombinator.com/item?id=46403200

Source: cve@mitre.org

Issue Tracking

https://www.openwall.com/lists/oss-security/2025/12/28/5

Source: cve@mitre.org

Mailing List

http://www.openwall.com/lists/oss-security/2025/12/29/11

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListPatch

https://lists.debian.org/debian-lts-announce/2026/01/msg00008.html

Source: af854a3a-2127-422b-91ae-364da2661108

https://gpg.fail/memcpy

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Broken Link

Timeline

No history available yet.